Bushnell Tactical Equinox I-Beam Night Vision Infrared Illuminator Flashlight Quality optics with stunning HD clarity 100% quality materials used and tested extensively Beautiful design and durability built to last Extends range and battery life of your night vision scope 805 nM IR wavelength and detection assistance of up to 200 yards; focusable/adjustable beam Three variable intensity settings (Low, Med, High) Designed to fit on the accessory rail of all Equinox Night Vision Monocular Weather resistance and lightweight at only 140 grams; runs on 2 standard AA batteries (included) with a battery life of up to 45 hours